|
HS Code |
923131 |
| Product Name | 2,4-Dinitrophenol, Industry Grade |
| Cas Number | 51-28-5 |
| Molecular Formula | C6H4N2O5 |
| Molecular Weight | 184.11 g/mol |
| Appearance | Yellow crystalline solid |
| Purity | Industry Grade (typically 96-99%) |
| Melting Point | 112 °C |
| Solubility In Water | 0.3 g/100 mL (25 °C) |
| Density | 1.683 g/cm³ |
| Odor | Slight phenolic |
| Storage Conditions | Store in cool, dry, well-ventilated area |
| Hs Code | 2904.90.9090 |
As an accredited 2,4-Dinitrophenol, Industry Grade factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 25 kg net weight packed in a robust, sealed fiber drum with inner polyethylene lining, clearly labeled with hazard and chemical information. |
| Shipping | 2,4-Dinitrophenol, Industry Grade, is shipped in tightly sealed containers, typically fiber drums or high-density polyethylene barrels. The packaging ensures protection from moisture and contamination. The chemical is classified as hazardous for transport and must be handled following regulations for toxic and combustible substances, with appropriate labeling and documentation for safe shipping. |
| Storage | Store 2,4-Dinitrophenol, Industry Grade, in a cool, dry, well-ventilated area away from heat, sparks, open flames, and incompatible substances such as strong oxidizers and reducing agents. Keep in tightly sealed containers, clearly labeled, and protect from moisture and direct sunlight. Ensure appropriate spill containment and restrict access to authorized, trained personnel. Use grounded equipment to prevent static discharge. |
Competitive 2,4-Dinitrophenol, Industry Grade prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
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Tel: +8615380400285
Email: sales2@liwei-chem.com
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Every manufacturer leaves fingerprints on their product. Our history with 2,4-Dinitrophenol runs deep, shaped by decades on factory lines. We’ve tweaked our process each year, learning from feedback and outcomes in real-world industrial applications. Customers count on repeatable results, reliable deliveries, and straight answers. There’s no corporate gloss here, just data from the lab and the floor, and the conviction that comes from making something with your own hands.
2,4-Dinitrophenol, often called DNP, is a yellow crystalline compound that industrial workers have used for generations. It stands apart among industrial chemicals due to its energetic properties and oxidation potential. Our product typically arrives to customers as solid flakes or powder, with purity levels tailored for reliable performance but without the cosmetic polishing found in analytical grades. Most users in manufacturing do not want to pay extra for unnecessary refinement. In fact, the process of removing trace impurities that do not impact performance ends up wasting resources.
People in this field know what it’s like to handle, store, and process industrial DNP. We build our batches to withstand transport stress, temperature swings in warehouses, and the strains of automated feeders. Every drum receives careful quality control, but those controls stay practical, focused on preventing costly downtime. In contrast, the kind of small-scale laboratory DNP available elsewhere clears a heavier battery of purity tests—unnecessary for end users running synthesis at a thousand times the scale. Higher-grade DNP isn’t free from the risk of dust, thermolability, or exothermic decomposition; our industry-grade product reflects the real priorities of plant operators, who value honest labelling, batch-to-batch stability, and proper packaging far above technical perfection.
The history of 2,4-Dinitrophenol’s applications tells a story about industry adaptation. Decades ago, it gained notoriety for misuse outside of manufacturing, but its vital role in industrial processes has never wavered. The main end uses remain in chemical synthesis, dyes, and some energetic material production. In these spheres, cost and reliability beat out unnecessary refinement. Each customer faces unique workflow demands. Some blend DNP into intermediates or dyestuff; some push material through thermal reactions where trace contaminants burn off or react away.
Equipment tolerance also plays a part. Not every production line welcomes high-purity DNP. High-lustre materials made for laboratory-scale experiment can introduce process instabilities in a full-capacity batch reactor. In our firm, we’ve fielded calls from customers whose equipment fouled after switching to “purer” material not built for high-throughput. Plant operators often discover that industry-grade DNP, with its steady behavior and predictability, slots into legacy production lines without surprise shutdowns.
Our typical model of industry-grade DNP maintains purity between 97% and 99%, controlled by process sampling, moisture content checks, and bulk powder consistency. We never inflate our figures or mislead about composition. DNP at this level gives strong, repeatable performance in nitration or reduction reactions. Trace by-products present at sub-percent levels—mainly mono- and trinitrophenol isomers—don’t affect downstream results for dye precursors or other base chemicals.
By working directly with synthesis operators, we’ve seen the practical benefit of our model. Special packaging controls, including tightly sealed drums with inert barrier liners, help keep moisture and contaminant pickup low. Unlike packaged laboratory-grade DNP, these containers withstand rough transport without bursting, spillage, or contamination of warehouse floors. In talking to plant purchasing staff, the need for durable containment comes up again and again.
Our DNP powder and flake hold up under conventional bulk-handling systems, so our customers do not see caking or bridging that interrupts feeder flow. We chose anti-caking parameters not based on generic industry trends, but after hands-on consultation with high-throughput factory teams in dye synthesis and energetic precursor production.
Every so often, a new industrial user arrives with concerns about residue, dust, or waste streams. Industry-grade DNP often gets unfairly dismissed for not reaching ‘laboratory’ standards. We have records showing that, in full-scale dye manufacture, small amounts of trace impurity either get consumed during synthesis or removed in standard downstream steps. There’s little to gain by raising cost and energy usage just to inch a few decimal places higher in purity—especially when analytical reports don’t show new contaminants impacting end results. We routinely share these case studies, stripped of identifying details, to new clients so they can benchmark results against real-world data instead of marketing claims.
Occupational safety always gets a front-row seat in our operations. Anyone who has shoveled, fed, or blended DNP on an industrial scale knows its reputation for sensitizing and thermal hazard. We back up our quality control with rigorous storage and transport instruction, and almost always walk new plant crews through handling demonstration. All our drums carry straightforward precaution labeling, distilled from decades of incident logbooks, not legal boilerplate. Anyone in this business knows dust control matters more than theoretical dose tables on a lab sticker, and our advice comes from seeing both successful and failed handling systems in the field.
Another misconception floats around regulatory cycles, where clients fear fluctuating hazard classification or seizure risk. Industry-grade DNP, correctly declared and handled in the bounds of legitimate industrial chemistry, remains permitted in most industrialized nations. Advocacy bodies and industry groups continue to defend the right to use technically essential materials like DNP while pushing for stricter controls on misuse. Honest declaration and transparent supply records help keep our users on solid regulatory ground. Every customer gets full access to our document trail from batch to batch, making surprise audits or customs checks less daunting.
Some chemical trends come and go with new generations of lab gear, but the key reasons for using solid medium-purity DNP don’t budge. In many dye routes, 2,4-Dinitrophenol offers irreplaceable reactivity and economy compared to newer, more expensive reagents. Attempts to substitute it with high-purity analogues or unrelated chemical families often produce unpredictable yields and drive up cycle costs. The big buyers—textile dye makers, plastics compounders, certain energetic chemical blenders—depend on a solid, affordable base supplied in bulk. Every time sharp price movements threaten, whole supply chains feel the shock, so stability and forward contracting with a manufacturer beats patchwork orders from traders or resellers.
Only direct factory production gives the reliability customers need for contract deadlines. If our technical team picks up contamination or batch variability, quick upstream correction avoids the domino effect of costly shutdowns or recalls. We’ve responded to enough urgent calls from line operators scrambling after a bad shipment to know that traceability and full control at the source matters more than just the face-value purity.
We take feedback straight from the mixing floor. Across continents, plant managers report that our industry-grade DNP handles well enough to keep maintenance to a minimum. Flake or powder remains free-flowing, moisture stays low even in humid climates, and critical reactivity never wobbles batch-to-batch. There’s a practical consistency about this grade; customers avoid headaches from drummed-up “superior” products that don’t actually translate to better production metrics in a real plant.
A manufacturer’s view sits deeper than just the numbers on a technical sheet. We observe and document not only test data, but real impacts in industrial settings. Our DNP is made in campaigns sized to average monthly volume seen in the market, not oversized product lots that deteriorate in storage. We adapt our packaging runs to match seasonality, shipping schedules, and downstream plant outages, so buyers avoid overbuying or dealing with product decay.
Our staff pioneered a batch process that reduces the most problematic trace by-products seen in older DNP production. The few remaining impurities—identified with both HPLC and mass spectrometry—are inert during the common uses in synthesis or dye production. These technical details do not show up on most marketing bulletins, but directly affect line stoppages and filter fouling at customer plants. Each year, Q/A staff spend time at customer sites, ensuring small changes on our end do not echo as big problems after shipping.
The manufacturer’s role involves long-term relationships. We routinely support process troubleshooting, new product trials, and waste handling upgrades. Our teams have mapped out slurry handling and recovery systems tailored around our DNP’s solubility and thermal response. While traders and third-parties might offer ‘brokered’ lots, we refuse uncertain origin or variable specification that could introduce unwanted contaminants or safety problems. Like many manufacturers, we feel responsible for keeping both the product and trust in our brand uncompromised.
Over the last decade, global logistics have thrown sharp challenges at all chemical producers. Ocean freight swings, customs delays, and sporadic raw material price spikes all force new ways of working. Our industry-grade DNP operation weathers this by advanced scheduling, stronger supplier alliances, and backup routing for every major lane. We hold contingency stocks not only for our own sake, but to guarantee contract supplies for key customers avoiding plant idling or unplanned substitution.
Environmental requirements keep tightening worldwide, and rightly so. Wastewater streams from DNP must track to regulatory thresholds, especially in regions with expanding environmental scrutiny. We offer customers detailed material balance and emission data, so they can run their abatement equipment with no guesswork. Where needed, we help optimize reaction parameters and recovery steps, pointing out where energy, solvent, or yield savings are possible.
Some customers in rapidly industrializing countries push to mirror “Western” plant standards but wrestle uneven enforcement. We openly share best-practice evidence—not hypotheticals, but the results of batch trials or emission readings. Our job as manufacturer sometimes involves nudging downstream users toward tighter controls, not dodging or spinning responsibility. Only this level of transparency preserves long-term client relationships and protects broader acceptance of DNP in global industry.
Chemical manufacturing never stands still. Users track new regulatory targets and improvements to physical handling all the time. We see opportunity—not just risk—in moving ahead of regulation with better batch tracking, smarter packaging, and improved impurity management. We’ve pressed local authorities and industry working groups to enact common sense guidelines that distinguish between responsible industrial users and illegal markets. Education at all levels, from shipping staff to reactor supervisors, strengthens safe, compliant handling.
We also invest in customer education as part of every major delivery. Our technical teams offer both on-site and remote sessions to review safe handling, emergency response, and waste stream control—always tailored to local needs, never as a one-size-fits-all seminar. Companies working closely with primary manufacturers avoid many pitfalls that come from mismatched grade selection or improper storage. It is routine for clients to call us to troubleshoot an off-spec yield or filter clog, and we encourage open dialogue well after a sale closes.
Long term, our core approach remains grounded in the basics: reliable, bulk-grade 2,4-Dinitrophenol built for the job, supported with direct answers and fast technical backup. In the face of evolving markets and complex logistics, honest manufacturing reigns—bringing material knowledge, respect for the end-user, and experience working at the sharp end of the industry.
Our industry-grade DNP product is not a re-bagged or repurposed byproduct; it doesn’t come from old stockpiles or third-party aggregators cobbling together mismatched lots. Each batch stems directly from our integrated process, built up from known intermediates and tracked from the earliest stages of synthesis through to final drumming. This stands in sharp contrast to trading company offerings, where chance contamination or variable moisture can sabotage production lines.
We’ve never promoted lab-grade DNP for manufacturing use unless an industrial client showed a clear, quantifiable need for the tighter contaminant profile—a rare event. In dyestuff preparation, for example, the minor organic and inorganic traces in our material neither persist to the final pigment nor affect application performance. Those traces ride out in side-streams or get scrubbed in the course of ordinary batchwork. Any extra cost the buyer pays for grade higher than industry-standard vanishes into thinner margins, not superior technical outcome.
Another key distinction lies in after-sales support. As direct producers, our teams help set up custom loading procedures, retrofit feeders, and integrate off-gas capture specifically suited to the properties of our DNP. Third-party suppliers lack this on-the-ground familiarity: they hand off drums and leave troubleshooting to the client. Anyone who has spent time resolving a stuck powder hopper or solvent incompatibility recognizes the value of talking maker to user, not chasing support from a distant broker.
Direct quality control, experienced technical support, and honest transparency distinguish our industrial DNP from anonymous, brokered stock circulating among traders. The product itself reflects this, not just in how it looks or tests in the lab, but in how it performs batch after batch under the tough, unpredictable conditions of real industry.
There’s an undeniable difference between a chemical made for theoretical compliance and one developed for hands-on success in factories. We, as manufacturers, never lose sight of the fact that each drum of DNP moves through rugged work environments filled with hard-earned experience and high expectations. That understanding drives every minor process improvement, from solvent selection to agitation speed in the reactor, to final product packing and shipment scheduling.
Decades of experience in producing and supplying 2,4-Dinitrophenol have shown us the importance of continual communication with the end user. Regular site visits, open feedback channels, and constant monitoring help identify challenges before they escalate. From handling incidents to rare product recalls, openness remains central to our commitment to safety, reliability, and performance. We have built our approach on evidence and field results, refusing to chase trends that do not translate to better outcomes for our users.
Manufacturing continues to change, shaped by both market needs and regulatory landscapes. Across the years, customer demands have sometimes shifted rapidly—with requests for smaller lot sizes, new drum formats, or tighter batch tracing. Our years on the line help us react quickly and keep our processes nimble. That learning doesn’t come from playbooks, but from years of partnership and direct fieldwork.
DNP’s high-energy properties and established reactivity profile anchor it in many staple processes, but future-proofing depends on recognizing new requirements before they become obstacles. We invest in better traceability, improved handling, and new data-driven quality controls. These investments shield us and our customers from changing conditions, whether they stem from new regulatory demands or evolving production methods in downstream industries.
Through all these changes, a core principle stands out: understanding the product from the hands of the people who make it to the businesses that rely on it. We never forget that our DNP is a tool—not just a commodity. Its utility to industry comes not from how it tests in isolation, but from how it supports the real, hard work taking place in cities and towns on every continent.
The role of a manufacturer remains constant: provide a product that holds up not only to analytical scrutiny, but also to years of everyday use. That trust, built batch by batch, is what brings value to industry-grade 2,4-Dinitrophenol—and keeps it a necessity in modern manufacturing even as technologies and global landscapes change.
